Internal-combustion engine.



W. C. WHSTAWAY INTERNAL GOMBUsTwN www APPLIOATONIILHD AUG, 3, 1008,

1,048,922; 'Patented Dec. 32,

'iii

W. CLWBSTWAY. INTERNAL COMBUSTION ENGINE.

APPLICATION FILED AUG 3. was.

1,048,922, Patented Dec. 31, 1912.

u @da CMM,

@figg MFSNE ASSIGN- 'NGIS, A GB- f 'valve on l' V1 Pf non. i 1e valve s1s; Sage 8 between aha Qmnbuslbe and the l is ndaped to Ja bis h@reduction @i is provided with noun , Hh xo 15 or iis 85 gf with ihe can:hei gem' 17 mesf i@ {hoc-mnh ..117 andi l 'i is @paged a 5% m31 funnthe 5 laken fuaf i.

mmentum o f3 ille pigiama. back, im@ h@ mt @E sutabe memanm usual 501mbeing sion the waste products produced by the pieten are driven outthrough the exhaust port controlled by the valve 10-which is Ypreferablyopened when the piston has reached the liinit oi'l travel toward theeranl( end ot' the (cylinder at' the time ot the explosion. The timingmechanism controllingA the spark plug' llV forms no part, 0F myinvention and is not. k-howl'n it being sullieielnt to Sav that. a sparkis produeed at each' time the charge is eon'ipresfed:

At each time when the charge buetible fired. the cylinder walls andpistion are heated by the eonibustion. )ly preferred iorm of engine isprovided with means for forcing; a Cooling;r iuid, such as air or thelike. into the cylinder of the enol rontgine preferably while the engineis discharg- Ling); the waste products of combustion thereby coolingythe cylinder Walls and piston and at the same time drivingg ontASubstanthe engine cylinder. the preferred construe# tion eompriSing whatmay be ternied an auxiliary or cooling fluid Cylinder 19. The cylinder19 is provided with a piston or plnnler 9.0 of any Suitableform arrangedtherein and preferably tmeratively Qonneeted by suitable means to theCrank Shaft I" ln the Construction shown thel eonneeting means; isarranged to drive or reeipro. rale the piston 'l0 one Complete stroke,thaty in. a etrolie in one direction and return while ihr engjii'iepiston 5 is making' two eoniplete Stroker-1. As shown the piston Qtr isprovided with a piston rod 21 which ie driven I a seeondary 'Shaft Q2suitably connected by means of a chain 21.5 and-Sproeket wheels and 2T;to the crank shaft lt itaobviotm however, that any other.Suitablearrangenient may be employed `to reeipro-ate the piston 2t) and that if'dereired it mav be entirely independent. .of the engine itself. Thecooling cylinder ia provided with an inlet 26 Controlled by a suitablevalve Q7 or it# equivalent, rez-'ilient means 2h normally re- `eharggIedfrom the Cooling cylinder 19 into the engine cylinder.

1n operation at the time the engine piston starts to move toward thecrank shaft under the force of the explosion the piston 20 starts on thereturn stroke toward the head end of the eylinder 19, the cylinder 19beiner substantially filled with the cooling fluid. However. thepressure within the engine cylinder is sullitfientt retain the Valvemember Jil closed until the piston has reaehed the end of its traveltoward the cranlt' end and the exhaust valve 10 has been opened. At thistime the piston Q0 has traveled half of the dietance toward the head endol' it cylinder and at the time the exl|au t valve olf the enginecylinder iS openthe cooling' fluid is forced through the pipe I'-l and bv the valve Q9 into the combmtion (-hamber ol` the engine. AS the piston5 movea toward the head end of its cylinder forcing out the wasteproduets Ofcombustion. (fooling fluid is simultaneously toreed into theengine cylinder Cooling the .-ylinder wallsl and pieton and at the. Sametime driving out the waste products of coinbuietion or t'oul`mixture. ASa fresh charge ot' combustible is drawn into the engine evlinder andeompresaed the rooting fluid is drawn into the cooling` tfvlinder 1t)through thH inlet 2V. the operationA continuing as desrribed. i

ln the ordinary form of engine Cooled t'rom without the cylinder at thetime a fresh char/5e ol" eombuf-tible is drawn into the evlinder thereremains a quant-ity of waste products ol' combustion or foul mixturewhieh mixesA with the new charge and t'ouls it to a more or les@ extent.lVith my deviee the rou'ibustion ehan'iber iS Substantially filled withpure air` when air is used as a eoolingtluid at the time a fresh chargeis taht-n into the cylinder. thus I`arriving a hetter mixture. lt deired or necessary the quantity of air previoualy mixed with theeombustible or Charge bet'f'ire enteringr the evlinder may be varied asnecessary or de.- sirable to meet the eonditionresulting from theintroduetion ot the cooling' fluid. S is obviom4 the variation in thequantity of air mentioned would depend upon the quantity and t-omlitionol' the rooting' air in the combustion eltamlier at the time a fresheharge isflalteu in and the condition of the cylinder walls ot theengine.

lt dn-'u'ed an extended part: 42 may be ar- .ranaed at the roolin'erlhiid inlet of the enl y'ine rvtinder .-io that the cooling lluid isdeli;ere l at a point v ubstantially remote from the exhaust port. or ifdesired the inlet may be arranged at Some other point in the'eyliin-ler.

lhe loim ot engine shown in Fig. 2 is lnll'tantiall),V similar to thatShown in Fig'. l with the exeeption that the engine ia pro- \ided with aplurality of cylinders and eooperating parte` and that the coolingcylinshown a plurality der piston is arranged to move in unison with thetwo engine pistons. With this arrangement one cylinder is preferablyarran ed to have the charge ignited at one stro e and the other at thealternating stroke, the`cooling fluid being forced first into onecylinder and then into the other at the times the respective cylindersare eX- hausting as heretofore described. It is ob- Vious that there maybe any number of engine cylinders or cooling fluid cylinders orreceptacles or that the cooling fluid may be forced into the cylindersby any equivalent arrangement than that shown and described.

Any suitable means or arrangement may be employed to control thequantity of cooling fluid forced into the engin cylinder. A very simplearrangement is sown in Figs. 2, 3 and 4 in which the cooling fluidcylinder or receptacle is provided with a plurality of openings 35therein which are normally covered by a plate 36 pivotally secured tothe cylinder as at 37. When it is desired to reduce the quantity ofcooling` fluid forced into the engine cylinder, the blade 36 is moveduncovering one or more of the openings 35 as shown in Figs. 3 and 4 sothat a portion cf the fluid escapes. As of holes 38 are tapped in thecylinder 19 and a thumb-screw 39 provided to lock the plate 3G in anydesired posit-ion.' Any equivalent means or arrangement may be employedto control the quan-- tity of cooling fluid forced into the enginecylinder or any suitable arrangement provided to lock plate 36 in thedesired position.

. Having thus described my invention it is obvious that variousimmaterial modifications may be made in the form, arrangement orcombination of Aparts herein shown and described Without departing fromthe Aipirit of my invention, hence I do not wish to be understood aslimiting myself to the exact construction or arrangement shown.

What I claim as new and desire to secure by Letters Patent is 1. Aninternal combustion engine of the kind described, in combination withmeans for introducing a cooling medium into the cylinder for internallycooling the cylinder Walls, and a tubular defiector of less diameterthan the cylinder extending longitudinally within the cylinder andsecured to the cylinder head whereby to separate the cooling medium romthe inlet and exhaust of the cylinder.

2. In a device of the kind described, and in combination, an internalcombustion engine provided with a power piston cylinder l a combustibleinlet and exhaust outlet in the wall of said cylinder, valves for saidinlet and outlet,said cylinder also having` an inlet for a coolingfiuid, and means for delivering a cooling luid directly intosaidcylinder l through said last mentioned inlet and at a point removedfrom the exhaust outlet substantially simultaneously with the opening ofthe engine exhaust valve, said means including a conduit ofsubstantially less diameter than the cylinder, secured to the cyling der head and extending longitudinally within the cylinder.

3. In a device of the kind described, and in combination, an internalcombustion engine provided with a power piston cylinder, a combustibleinlet and exhaust outlet in the wall of said cylinder, valves for saidinlet and outlet, said cylinder also let for a cooling fluid.` and meansfor delivering a cooling fluid directly into said cylinder through saidlast mentioned inlet and at a point removed from the exhaust outletsubstantially simultaneously With-,the opening of the engine exhaustvalvef'said means including a detiector secured to the end wall of thecylinder adjacent the cooling fluid inlet and extending substantiallyparallel' with the side wall of the cylinder.

In testimony whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

WALTER C. WEST AWAY. Witnesses ARTHUR R. HALEY, Louis F. MEEHAN.

having an in-

